Frog.



.No. 855,879. PATENTED' JUNE 4, 1907.

' M. OHILA.

FROG.

APPLICATION FILED NOV. 15,1906.

2 SHEETS-SHEET 1.

PATENTED JUNE 4, 1907.

M. GHILA.

FROG.

APPLICATION $11.21)

NOV. 15. 1906.

2 SHEETS-SHEBT 2 MIKE OHILA, OF VVIIITING, INDIANA.

FROG.

Specification of Letters Patent.

Patented June 4, 1907.

Application filed November 15,1906. Serial No. 343,580.

T at whom, it may concern:

Be it known that I, MIKE CHILA, a citizen of the United States, residingat Whiting, in the county of Lake and State of Indiana, have inventedcertain new and useful Improvements in Frogs; and I do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

M y invention relates to new and useful improvements in switch frogs andmore particularly to that class adapted to be used in connection withrailway tracks, and my object is to so construct the frog that the samewill receive the ends of the adjacent rails and form a substantiallysolid joint.

A further object is to construct the frog in one piece thereby making afirm connection between the switch rails and eliminating the possibilityof derailing trains passing thereover.

Other objects and advantages will be hereinafter referred to and moreparticularly pointed out in the claims.

In the accompanying drawings which are made a part of this application,Figure 1 is a top plan view of a section of railway track and switchshowing my improved frog in position thereon. Fig. 2 is a centrallongitudinal sectional view through the frog as seen from line 2-2,Fig. 1. Fig. 3 is a sectional view as seen from line 33, Fig. 1, and,Figs. 4 and 5 are similar views as seen from lines 44, and 55,respectively, of Fig. 1.

Referring to the drawings in which similar reference numerals designatecorresponding parts throughout the several views, 1 indicates the baseof my improved frog upon'the upper face of which. are formed ribs 2 and3 which are adapted to form the continuation of one of the main trackrails 4 and one of the switch rails 5, respectively, the ribs 2 and 3being of sufficient height above the base 1 to coincide with the upperface of the rails 4 and 5, the base 1 being provided with slots 6 and 7to receive the ends of the rails 4 and 5, respectively, so that when theends of the rails are disposed within the slots, said rails will befirmly held into engagement with the frog and through the medium of theribs 2 and 3 form substantially continuous rails.

As best shown in Fig. 1 of the drawing the ribs 2 and 3 converge fromone end of the base 1 to a point adjacent its center where said ribsdiverge and have their outer free ends curved to form guards 8 and 9,respectively. Disposed between the diverged ends of the ribs 2 and 3 isa substantially V-shaped section 10 which is of the same height as theribs 2 and 3 and is adapted to receive the ends of the track and switchrails 4 and 5 at this end of the frog, the section 10 also beingprovided with slots 6 and 7 similar to the slots in the opposite end ofthe frog. The slots 6 and 7 at each end of the base are of the samecontour as the rails so that when the ends of the rails are directedinto the slots, said rails will be entirely surrounded by the baseexcept the upper face and one side of the head of the rails so that itwill be impossible for the rails to yield laterally at their juncturewith the base. It will also be seen that by providing the guards 8 and 9that the wheels in passing over the frog will be prevented from leavingthe track. The base 1 is secured to the cross-ties in any preferredmanner as by directing spikes 11 through openings in the base 1 and intoengagement with the ties 12. It will now be seen that I have provided avery durable and economical form of frog and by constructing the same inone solid piece that there are no parts to become disarranged or easilybroken and it will further be seen that the ribs 2 and 3 and the edgesof the section 10 form the track way for the wheelsin passing over thefrog and form a substantially continuous track way between the rails ateach end of the frog.

That I claim is:

1. The herein described switch frog comprising a body, ribs extendingupwardly from said body, said ribs having their free ends curved to formguards, a V-shaped section extending between said guards, each end ofsaid body having slots therein to receive the ends of the track railsand means to secure the base in position upon the track way.

2. A switch frog of the class described comprising the combination withtrack rails; of a base, ribs extending from the upper face of said base,said ribs converging from one end of the base to a point adjacent itscenter and having their free ends diverging and curved to form guards, asubstantially V-shaped section integral with the base and extending nameto this specification in the presence of between said diverged sectionsof said ribs, two subscribing Witnesses. said base having slots at eachend thereof to receive and partially inclose said rails and MIKE CHILA 5means to secure the frog in position upon the Witnesses:

track way. D. D. GRIFFITH,

In testimony whereof I have signed mvl A. J. LANE.

